EP 0975591 A1 20000202 - PROCESSES FOR PRODUCING EPSILON CAPROLACTAMS
Title (en)
PROCESSES FOR PRODUCING EPSILON CAPROLACTAMS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON EPSILON CAPROLACTAM
Title (fr)
PROCEDE DE PRODUCTION DE CAPROLACTAMES EPSILON
Publication
Application
Priority
- US 9807358 W 19980414
- US 83957697 A 19970415
Abstract (en)
[origin: US5962680A] This invention relates in part to processes for producing one or more substituted or unsubstituted epsilon caprolactams, e.g., epsilon caprolactam, which comprises: (a) subjecting one or more substituted or unsubstituted alkadienes to hydroxycarbonylation in the presence of a hydroxycarbonylation catalyst, e.g., a metal-organophosphorus ligand complex catalyst, and neutralization with a base to produce one or more substituted or unsubstituted pentenoic acid salts; (b) subjecting said one or more substituted or unsubstituted pentenoic acid salts to hydroformylation in the presence of a hydroformylation catalyst, e.g., a metal-organophosphorus ligand complex catalyst, to produce one or more substituted or unsubstituted formylvaleric acid salts and/or one or more substituted or unsubstituted epsilon caprolactam precursors; and (c) subjecting said one or more substituted or unsubstituted formylvaleric acid salts and/or said one or more substituted or unsubstituted epsilon caprolactam precursors to reductive amination in the presence of a reductive amination catalyst and cyclization optionally in the presence of a cyclization catalyst to produce said one or more substituted or unsubstituted epsilon caprolactams. This invention also relates in part to reaction mixtures containing one or more substituted or unsubstituted epsilon caprolactams as the principal product(s) of reaction.
IPC 1-7
IPC 8 full level
B01J 31/24 (2006.01); C07B 61/00 (2006.01); C07D 201/02 (2006.01); C07D 201/08 (2006.01); C07D 223/10 (2006.01); C08G 69/02 (2006.01); C08G 69/14 (2006.01); C08G 69/36 (2006.01)
CPC (source: EP KR US)
C07D 201/02 (2013.01 - EP US); C07D 201/08 (2013.01 - EP KR US); C08G 69/02 (2013.01 - EP US); C08G 69/14 (2013.01 - EP US); C08G 69/36 (2013.01 - EP US); Y02P 20/582 (2015.11 - EP US)
Citation (search report)
See references of WO 9846565A1
Designated contracting state (EPC)
BE DE ES FR GB IT NL PT SE
DOCDB simple family (publication)
US 5962680 A 19991005; AR 012407 A1 20001018; BR 9809572 A 20010731; CA 2285745 A1 19981022; CN 1297433 A 20010530; EP 0975591 A1 20000202; JP 2001521526 A 20011106; KR 20010006329 A 20010126; MX 9909345 A 20000401; PL 336266 A1 20000619; WO 9846565 A1 19981022
DOCDB simple family (application)
US 83957697 A 19970415; AR P980101688 A 19980414; BR 9809572 A 19980414; CA 2285745 A 19980414; CN 98805965 A 19980414; EP 98914690 A 19980414; JP 54415098 A 19980414; KR 19997009414 A 19991013; MX 9909345 A 19991013; PL 33626698 A 19980414; US 9807358 W 19980414